A nodule-specific protein secretory pathway required for nitrogen-fixing symbiosis (2010)

Titel A nodule-specific protein secretory pathway required for nitrogen-fixing symbiosis
Gepubliceerd in Science, Vol. 327, No. 5969, p.1126-1129. ISSN 0036-8075.
Auteur Wang, D.; Griffitts, J.; Starker, C.; Fedorova, E.; Limpens, E.H.M.; Ivanov, S.E.; Bisseling, T.; Long, S.
Datum 2010
Trefwoord(en) Laboratorium voor Moleculaire biologie, Extern overig, Molecular Biology, Extern other
Taal Engels
Type Artikel
Samenvatting The nitrogen-fixing symbiosis between Sinorhizobium meliloti and its leguminous host plant Medicago truncatula occurs in a specialized root organ called the nodule. Bacteria that are released into plant cells are surrounded by a unique plant membrane compartment termed a symbiosome. We found that in the symbiosis-defective dnf1 mutant of M. truncatula, bacteroid and symbiosome development are blocked. We identified the DNF1 gene as encoding a subunit of a signal peptidase complex that is highly expressed in nodules. By analyzing data from whole-genome expression analysis, we propose that correct symbiosome development in M. truncatula requires the orderly secretion of protein constituents through coordinated up-regulation of a nodule-specific pathway exemplified by DNF1
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Persistent Identifier urn:nbn:nl:ui:32-392362
Metadata XML
Repository Wageningen Universiteit & Researchcentrum

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